Updates file type selector for fileSystem API

chrome/browser/extensions/api/file_system/file_system_api.h

Index: chrome/browser/extensions/api/file_system/file_system_api.h
diff --git a/chrome/browser/extensions/api/file_system/file_system_api.h b/chrome/browser/extensions/api/file_system/file_system_api.h
index f65649ed53df65d00c02822f1aafd80bf5c83d32..e86b9f47630d96288da0705c3f53dbfff560fdd8 100644
--- a/chrome/browser/extensions/api/file_system/file_system_api.h
+++ b/chrome/browser/extensions/api/file_system/file_system_api.h
@@ -7,6 +7,9 @@
 
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/ui/select_file_dialog.h"
+#include "chrome/common/extensions/api/file_system.h"
+
+namespace file_system = extensions::api::file_system;
 
 namespace extensions {
 
@@ -72,12 +75,22 @@ class FileSystemChooseFileFunction : public FileSystemEntryFunction {
 
   DECLARE_EXTENSION_FUNCTION_NAME("fileSystem.chooseFile");
 
+  static void BuildFileTypeInfo(
+      SelectFileDialog::FileTypeInfo* file_type_info,
+      const FilePath::StringType& suggested_extension,
+      const std::vector<linked_ptr<file_system::AcceptOption> >* accepts,
+      const bool* acceptsAllTypes);
+  static void BuildSuggestion(const std::string* opt_name,
+                              FilePath* suggested_name,
+                              FilePath::StringType* suggested_extension);
+
  protected:
   class FilePicker;
 
   virtual ~FileSystemChooseFileFunction() {}
   virtual bool RunImpl() OVERRIDE;
   bool ShowPicker(const FilePath& suggested_path,
+                  const SelectFileDialog::FileTypeInfo& file_type_info,
                   SelectFileDialog::Type picker_type,
                   EntryType entry_type);